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DurAND: Strupries IN NortTH AMERICAN Discomycetes 465 
Ascomata scattered or gregarious, originating beneath the epi- 
dermis but soon breaking through and becoming apparently sessile 
on the surface, 0.3-0.5 mm. in diameter, the whole plant dark 
reddish-brown, the disk plane scarcely margined ; excipulum 
minutely parenchymatous, brown. Asci broadly clavate, nar- 
rowed below to a short stout base, apex rounded, not blue with 
iodine, 65-110 ¢ x 15—20; spores 8, irregularly biseriate, at first 
hyaline and continuous, finally becoming yellowish and _three- 
septate, smooth, oblong-elliptical or oblong-fusiform, usually some- 
what inequilateral, 15-21 x 4-6 » ; paraphyses filiform, longer than 
the asci, the tips yellowish and cohering to form an epithecium. 
On a bark of dead limbs of Hamamelis Virginiana, New York, 
Peck, Fairman, Durand et al. (Herb. Cornell, nos. 923, 5808 and 
7938); Penn., Elis; W. Virginia (Vuttall). 
Specimens may be collected almost any month in the year, 
but the best fruiting material is to be found in the late autumn. I 
have compared specimens authenticated by Dr. Peck as Patellaria 
hamamelidis Pk., with the specimen of Dermatella hamamelidis E. 
& E. in the N. A. F., no. 2634, also with material from Dr. Fair- 
man determined by Ellis, and find that the three represent a single 
species. The continuous spore is multiguttulate. The first sep- 
tum is near the middle. This is followed by one in each half 
simultaneously, or one half may be septated long before the other. 
A section shows clearly the erumpent habit of the ascomata. 
BotanicaL LABORATORY, 
CORNELL UNIVERSITY. , 
